react-native/local-cli/core/__tests__/findPlugins.spec.js

59 lines
1.8 KiB
JavaScript

/**
* Copyright (c) 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
jest.autoMockOff();
const path = require('path');
const findPlugins = require('../findPlugins');
const ROOT = path.join(__dirname, '..', '..', '..');
const pjsonPath = path.join(ROOT, 'package.json');
const isArray = (arg) =>
Object.prototype.toString.call(arg) === '[object Array]';
describe('findPlugins', () => {
beforeEach(() => jest.resetModules());
it('should return an array of dependencies', () => {
jest.mock(pjsonPath, () => ({
dependencies: { 'rnpm-plugin-test': '*' },
}));
expect(findPlugins([ROOT]).length).toBe(1);
expect(findPlugins([ROOT])[0]).toBe('rnpm-plugin-test');
});
it('should return an empty array if there\'re no plugins in this folder', () => {
jest.mock(pjsonPath, () => ({}));
expect(findPlugins([ROOT]).length).toBe(0);
});
it('should return an empty array if there\'s no package.json in the supplied folder', () => {
expect(isArray(findPlugins(['fake-path']))).toBeTruthy();
expect(findPlugins(['fake-path']).length).toBe(0);
});
it('should return plugins from both dependencies and dev dependencies', () => {
jest.mock(pjsonPath, () => ({
dependencies: { 'rnpm-plugin-test': '*' },
devDependencies: { 'rnpm-plugin-test-2': '*' },
}));
expect(findPlugins([ROOT]).length).toEqual(2);
});
it('should return unique list of plugins', () => {
jest.mock(pjsonPath, () => ({
dependencies: { 'rnpm-plugin-test': '*' },
devDependencies: { 'rnpm-plugin-test': '*' },
}));
expect(findPlugins([ROOT]).length).toEqual(1);
});
});